I don't own a set of head phones.
Never have.
When I am out and about I like to hear the sounds and beats and rhythms of the world around me.
The hum of traffic, a Harley, a V8, a Subaru Impressa, snippets of conversations, birds chirping and singing, drunks arguing, psychos having intense conversations with themselves, schoolgirls gossiping, dogs barking and howling, the wind whistling, the rain pelting, the splash of puddles, etc.
When I see people cocooned and insulated in their headphones and their eyes buried in their cell phones I feel sorry for them.